CN214245787U - Stress release type steel reinforcement cage sand well foundation pit dewatering device - Google Patents
Stress release type steel reinforcement cage sand well foundation pit dewatering device Download PDFInfo
- Publication number
- CN214245787U CN214245787U CN202022551069.7U CN202022551069U CN214245787U CN 214245787 U CN214245787 U CN 214245787U CN 202022551069 U CN202022551069 U CN 202022551069U CN 214245787 U CN214245787 U CN 214245787U
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- Prior art keywords
- reinforcement cage
- steel reinforcement
- well
- release type
- stress release
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- 230000002787 reinforcement Effects 0.000 title claims abstract description 106
- 229910000831 Steel Inorganic materials 0.000 title claims abstract description 40
- 239000010959 steel Substances 0.000 title claims abstract description 40
- 239000004576 sand Substances 0.000 title claims abstract description 37
- 238000001556 precipitation Methods 0.000 claims abstract description 22
- 239000002689 soil Substances 0.000 claims abstract description 21
- 210000003205 muscle Anatomy 0.000 claims abstract description 13
- 239000004575 stone Substances 0.000 claims abstract description 7
- 239000004927 clay Substances 0.000 claims description 8
- 239000004746 geotextile Substances 0.000 claims description 3
- 239000003245 coal Substances 0.000 claims 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 31
- 230000035699 permeability Effects 0.000 abstract description 11
- 230000000694 effects Effects 0.000 abstract description 7
- 239000002245 particle Substances 0.000 abstract description 4
- 230000001737 promoting effect Effects 0.000 abstract description 2
- 238000003466 welding Methods 0.000 abstract 2
- 238000010276 construction Methods 0.000 description 11
- 239000000463 material Substances 0.000 description 11
- 239000004744 fabric Substances 0.000 description 10
- 230000003014 reinforcing effect Effects 0.000 description 8
- 230000008595 infiltration Effects 0.000 description 3
- 238000001764 infiltration Methods 0.000 description 3
- 230000000903 blocking effect Effects 0.000 description 2
- 238000001914 filtration Methods 0.000 description 2
- 238000010521 absorption reaction Methods 0.000 description 1
- 238000009412 basement excavation Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000002955 isolation Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012856 packing Methods 0.000 description 1
- 239000011148 porous material Substances 0.000 description 1
- 230000000717 retained effect Effects 0.000 description 1
- 230000006641 stabilisation Effects 0.000 description 1
- 238000011105 stabilization Methods 0.000 description 1
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- Investigation Of Foundation Soil And Reinforcement Of Foundation Soil By Compacting Or Drainage (AREA)
Abstract
The utility model discloses a stress release type steel reinforcement cage sand pit foundation ditch precipitation device, including the wellhole, the inside fixed outer steel reinforcement cage that is provided with of wellhole, outer steel reinforcement cage includes main muscle, spiral muscle and stiffening rib, main muscle forms main skeleton to evenly distributed along outer steel reinforcement cage circumference, stiffening rib is along the radial evenly distributed of outer steel reinforcement cage and fixed welding at main muscle inner circle, the spiral muscle is heliciform and fixed welding in the outer lane of main muscle, the inside fixed interior steel reinforcement cage that is provided with of outer steel reinforcement cage, all through linking bridge fixed connection between the upper and lower both ends of outer steel reinforcement cage and interior steel reinforcement cage. The utility model discloses a stress release type steel reinforcement cage sand well foundation ditch dewatering device, this foundation ditch dewatering device have good gas permeability and water permeability, enable rivers and pass through to can hold back soil particles effectively, fine sand, little building stones etc. with the stability that keeps water and soil engineering, the specially adapted sandy soil layer, the dewatering effect is showing, is worth promoting.
Description
Technical Field
The utility model relates to a building foundation pit engineering construction dewatering technical field especially relates to a stress release type steel reinforcement cage sand well foundation pit dewatering device.
Background
Along with the continuous development of urban construction, the development and construction of underground space are also great tendency, and along with the increase of the buried depth of an underground structure, the problem of underground water influence inevitably exists, underground water not only brings difficulty to the construction of underground structure foundation pit support, but also easily causes the stress increase of a support structure or the effectiveness reduction of the support system, thereby causing the deformation of the foundation pit support system to be overlarge, even causing the failure of the foundation pit support system, seriously threatening the construction safety, and particularly in the foundation pit engineering of a region with expansibility on a side wall soil body.
Traditional excavation supporting precipitation adopts tube well precipitation or stagnant water curtain, both all have the construction cycle length, environmental impact is big, the shortcoming that the degree of difficulty is big, and can't carry out nimble motor-driven setting according to the engineering actual need, thereby increase construction cost, to tube well precipitation, adopt no sand well pipe as precipitation well wall of a well material, filter the water through the water permeability filter material of packing between the wall of a well outside and the soil body, because the intensity of no sand well pipe is very low, in carrying out precipitation construction, the suction pipe of suction pump stretches into in the precipitation well pipe, the suction pipe constantly swings, very easily bump the precipitation well pipe, thereby make earth get into the precipitation well, silt plug precipitation well and suction pump, cause precipitation well and suction pump to scrap, the precipitation well has to be established again, bring very big trouble for the construction.
SUMMERY OF THE UTILITY MODEL
The utility model aims at solving the defects existing in the prior art and providing a stress release type steel reinforcement cage sand well foundation pit dewatering device.
In order to achieve the above purpose, the utility model adopts the following technical scheme: a stress release type reinforcement cage sand well foundation pit dewatering device comprises a well hole, wherein an outer reinforcement cage is fixedly arranged inside the well hole, the outer reinforcement cage comprises a main rib, a spiral rib and a stiffening rib, the main rib is uniformly distributed along the circumference of the outer reinforcement cage to form a main framework, the stiffening rib is uniformly distributed along the radial direction of the outer reinforcement cage and is fixedly welded on the inner ring of the main rib, the spiral rib is spirally and is fixedly welded on the outer ring of the main rib, an inner reinforcement cage is fixedly arranged inside the outer reinforcement cage, the upper end and the lower end of the outer reinforcement cage and the upper end and the lower end of the inner reinforcement cage are fixedly connected through a connecting support, a sand-stone filter material is fixedly arranged between the outer reinforcement cage and the inner reinforcement cage and inside the inner reinforcement cage, a placing cavity is fixedly arranged at the lower end of the inner reinforcement cage, a submersible pump is fixedly arranged inside the placing cavity, and an output end of the submersible pump is fixedly connected with a water outlet pipe, the water outlet pipe extends from the bottom of the well to the top of the well and extends out of the well.
As a further description of the above technical solution:
the well hole is fixedly arranged inside the water seepage soil layer.
As a further description of the above technical solution:
the structure of the inner reinforcement cage is the same as that of the outer reinforcement cage.
As a further description of the above technical solution:
the outer sides of the inner reinforcement cage and the outer reinforcement cage are fixedly provided with geotechnical cloth layers, and the outer sides of the geotechnical cloth layers are fixedly provided with reinforcement mesh layers.
As a further description of the above technical solution:
and a clay blocking layer is fixedly arranged at the upper end of the well hole, and the thickness of the clay blocking layer is at least 1.5 m.
As a further description of the above technical solution:
the diameter of main muscle is 16mm, the diameter of stiffening rib is 16mm, the diameter of spiral muscle is 8 mm.
As a further description of the above technical solution:
the screw pitch of spiral muscle is 100 ~ 150mm, the interval of stiffening rib is 1000 ~ 1500 mm.
The utility model discloses following beneficial effect has:
the utility model provides a pair of stress release type steel reinforcement cage sand well foundation ditch precipitation device is strutted sand well wall through setting up inside and outside steel reinforcement cage, keeps the pore wall temporary stabilization to fill the gravel filter material in the steel reinforcement cage, the infiltration water absorption of steel reinforcement cage and gravel filter material is effectual, can keep seeping water in succession, and the precipitation effect is showing, and sets up the immersible pump bottom the steel reinforcement cage, carries out taking out of drainage through the immersible pump, thereby the effectual precipitation work that carries on.
The utility model provides a pair of stress release type steel reinforcement cage sand well foundation ditch precipitation device, through inside and outside steel reinforcement cage outer wall set up geotechnological cloth layer and reinforcing bar stratum reticulare, reinforcing bar stratum reticulare can be fixed and protect the geotechnological cloth layer, prevent that geotechnological cloth layer from damaging, geotechnological cloth layer has good gas permeability and water permeability, can make rivers pass through, and can hold back soil particles effectively, fine sand, little building stones etc. with the stability that keeps water and soil engineering, avoid leading to precipitation well inefficacy because drainage hole blocks up, more outstanding filtration has, the drainage, the isolation.
The utility model provides a pair of stress release type steel reinforcement cage sand well foundation ditch precipitation device utilizes the strong water permeability of sandstone filtration material, gathers the inflation soil crack water, slows down the harm of water to inflation soil performance reduction, utilizes the sump pit that sets up along the foundation ditch outside, effectively dams the harm of foundation ditch outside infiltration to foundation ditch stability, and it is very convenient to use.
This foundation ditch precipitation device has good gas permeability and water permeability, enables rivers and passes through to can hold back soil particles, fine sand, little building stones etc. effectively, with the stability that keeps the water and soil engineering, the specially adapted sandy soil layer, precipitation effect is showing, and is more guaranteed to deep foundation ditch construction safety, is worth promoting.
Drawings
Fig. 1 is a front sectional view of a stress-release type steel reinforcement cage sand well foundation pit dewatering device provided by the utility model;
fig. 2 is a top view of the stress-releasing type steel reinforcement cage sand well foundation pit dewatering device provided by the utility model;
fig. 3 is the utility model provides an inside and outside steel reinforcement cage structure picture of stress release type steel reinforcement cage sand well foundation ditch precipitation device.
Illustration of the drawings:
1. a wellbore; 2. an outer reinforcement cage; 3. an inner reinforcement cage; 4. connecting a bracket; 5. a sand filter material; 6. clay plugging layer; 7. a water seepage soil layer; 8. a placement chamber; 9. a submersible pump; 10. a water outlet pipe; 11. a geotextile layer; 12. a reinforcing mesh layer; 13. a main rib; 14. a spiral rib; 15. and (5) a stiffening rib.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention; the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance, and furthermore, unless otherwise explicitly stated or limited, the terms "mounted," "connected," and "connected" are to be construed broadly and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.
Referring to fig. 1-3, the present invention provides an embodiment: a stress release type reinforcement cage sand well foundation pit dewatering device comprises a well hole 1, wherein an outer reinforcement cage 2 is fixedly arranged inside the well hole 1, the outer reinforcement cage 2 comprises a main reinforcement 13, a spiral reinforcement 14 and a stiffening reinforcement 15, the main reinforcement 13 is uniformly distributed along the circumference of the outer reinforcement cage 2 to form a main framework, the stiffening reinforcement 15 is uniformly distributed along the radial direction of the outer reinforcement cage 2 and is fixedly welded at the inner ring of the main reinforcement 13, the spiral reinforcement 14 is spirally and is fixedly welded at the outer ring of the main reinforcement 13, an inner reinforcement cage 3 is fixedly arranged inside the outer reinforcement cage 2, the upper end and the lower end of the outer reinforcement cage 2 and the upper end and the lower end of the inner reinforcement cage 3 are fixedly connected through a connecting bracket 4, a sand-stone filter material 5 is fixedly arranged between the outer reinforcement cage 2 and the inner reinforcement cage 3 and inside the inner reinforcement cage 3, a placing cavity 8 is fixedly arranged at the lower end of the inner reinforcement cage 3, a submersible pump 9 is fixedly arranged inside the placing cavity 8, an output end of the submersible pump 9 is fixedly connected with a water outlet pipe 10, the outlet pipe 10 extends from the bottom of the well to the top of the well and out of the well.
1 fixed settings of wellhole is inside infiltration soil layer 7, interior reinforcing bar cage 3 structure is the same with outer reinforcing bar cage 2, interior reinforcing bar cage 3 and the outer reinforcing bar cage 2 outside all fixed geotechnological cloth layer 11 that is provided with, two geotechnological cloth layer 11 outsides are all fixed and are provided with reinforcing bar stratum reticulare 12, 1 fixed clay shutoff layer 6 that is provided with in wellhole upper end, 6 thickness on clay shutoff layer are 1.5m at least, the diameter of main muscle 13 is 16mm, the diameter of stiffening rib 15 is 16mm, the diameter of spiral rib 14 is 8mm, the pitch of spiral rib 14 is 100 ~ 150mm, the interval of stiffening rib 15 is 1000 ~ 1500 mm.
The working principle is as follows: when the stress release type steel reinforcement cage sand well foundation pit dewatering device is used, water seepage is carried out through the sand filter materials 5 arranged in the inner steel reinforcement cage and the outer steel reinforcement cage, water enters the inner steel reinforcement cage 3 through the geotechnical cloth layer 11, the geotechnical cloth layer 11 has good air permeability and water permeability, water can pass through the sand filter materials, soil particles, fine sand, small stones and the like can be effectively retained, so as to keep the stability of water and soil engineering, the permeated water is pumped out of the sand well through the water outlet pipe 10 under the suction effect of the submersible pump 9, so that the dewatering of a sand well foundation pit is realized, the inner steel reinforcement cage and the outer steel reinforcement cage support the wall of the sand well, the temporary stability of the hole wall is kept, the water permeating and absorbing effects of the steel reinforcement cage and the sand filter materials 5 are good, the continuous water seepage can be kept, the dewatering effect is obvious, the foundation pit dewatering device has good air permeability, the water-soil engineering is stable, the water-soil engineering is particularly suitable for sandy soil layers, the dewatering effect is obvious, and the safety of deep foundation pit construction is guaranteed.
Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications and variations can be made in the embodiments or in part of the technical features of the embodiments without departing from the spirit and the scope of the invention.
Claims (7)
1. The utility model provides a stress release type steel reinforcement cage sand well foundation ditch precipitation device, includes well bore (1), its characterized in that: the outer reinforcement cage (2) is fixedly arranged inside the well hole (1), the outer reinforcement cage (2) comprises main reinforcements (13), spiral reinforcements (14) and stiffening reinforcements (15), the main reinforcements (13) are uniformly distributed along the circumference of the outer reinforcement cage (2) to form a main framework, the stiffening reinforcements (15) are uniformly distributed along the radial direction of the outer reinforcement cage (2) and are fixedly welded on the inner ring of the main reinforcements (13), the spiral reinforcements (14) are spirally and fixedly welded on the outer ring of the main reinforcements (13), the inner reinforcement cage (3) is fixedly arranged inside the outer reinforcement cage (2), the upper ends and the lower ends of the outer reinforcement cage (2) and the inner reinforcement cage (3) are fixedly connected through connecting supports (4), sand stones (5) are fixedly arranged between the outer reinforcement cage (2) and the inner reinforcement cage (3) and inside the inner reinforcement cage (3), a placing cavity (8) is fixedly arranged at the lower end of the inner reinforcement cage (3), the underground coal mine well is characterized in that a submersible pump (9) is fixedly arranged inside the placing cavity (8), an outlet pipe (10) is fixedly connected to the output end of the submersible pump (9), and the outlet pipe (10) extends to a well head from a well bottom and extends out of the well.
2. The stress release type steel reinforcement cage sand well foundation pit dewatering device of claim 1, characterized in that: the well hole (1) is fixedly arranged in the water-permeable soil layer (7).
3. The stress release type steel reinforcement cage sand well foundation pit dewatering device of claim 1, characterized in that: the structure of the inner reinforcement cage (3) is the same as that of the outer reinforcement cage (2).
4. The stress release type steel reinforcement cage sand well foundation pit dewatering device of claim 1, characterized in that: and the outer sides of the inner reinforcement cage (3) and the outer reinforcement cage (2) are fixedly provided with geotextile layers (11), and the outer sides of the geotextile layers (11) are fixedly provided with reinforcement mesh layers (12).
5. The stress release type steel reinforcement cage sand well foundation pit dewatering device of claim 1, characterized in that: the clay plugging device is characterized in that a clay plugging layer (6) is fixedly arranged at the upper end of the well hole (1), and the thickness of the clay plugging layer (6) is at least 1.5 m.
6. The stress release type steel reinforcement cage sand well foundation pit dewatering device of claim 1, characterized in that: the diameter of main muscle (13) is 16mm, the diameter of stiffening rib (15) is 16mm, the diameter of spiral muscle (14) is 8 mm.
7. The stress release type steel reinforcement cage sand well foundation pit dewatering device of claim 1, characterized in that: the screw pitch of spiral muscle (14) is 100 ~ 150mm, the interval of stiffening rib (15) is 1000 ~ 1500 mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022551069.7U CN214245787U (en) | 2020-11-06 | 2020-11-06 | Stress release type steel reinforcement cage sand well foundation pit dewatering device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022551069.7U CN214245787U (en) | 2020-11-06 | 2020-11-06 | Stress release type steel reinforcement cage sand well foundation pit dewatering device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214245787U true CN214245787U (en) | 2021-09-21 |
Family
ID=77731532
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022551069.7U Expired - Fee Related CN214245787U (en) | 2020-11-06 | 2020-11-06 | Stress release type steel reinforcement cage sand well foundation pit dewatering device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214245787U (en) |
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2020
- 2020-11-06 CN CN202022551069.7U patent/CN214245787U/en not_active Expired - Fee Related
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| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20210921 |